The Structure and the Function of Flower

1. The Structure of flower

      Based on the reproductive organ, flower is distinguished into bisexual/hermaphrodite flower and unisexual flower. Bisexual flower is also called perfect flower because it has two refproductive organs in one flower. Flower that has only one reproductive organ (male or female) is called unisxual flower. Flower has many kinds of shape, such as butterfly, trumpet, bell, cone, tube, star and lip.

     On closed seed plant (Angiosperm), flower is composed of several parts including sepal (calyk), petal (corola), male organ (staminate), and female organ (pistillate). Look at the picture !

      Sepal and petal are called flower jewlry. Stamen is composed of two parts, stamen stalk (filament) and pollen sac (anther). Pistil is composed of three parts, top of the pistil (stigma), pistil stalk (style) and ovary.

2. The Function of Flower

      The jewelry color, the flower aroma, and honey gland serve to attract pollination agent.

      Reproductive organs function as gamete production. Male gamete is produced by anther, where as female gamet is produced by pistil. pollination occurs on stigma, that is the transfer of pollen to the stigma. Style is a passageway for pollen to move toward ovary. In ovary, there is an ovule which contain ovum.